Trimanganese Tetraoxide (Mn3O4) Powder from Japan
Mn3O4, or trimanganese tetraoxide, used in ferrites for magnetic applications and as a sintering aid. Classified under HTS 2820.90.00.00 as other manganese oxides, a mixed-valence inorganic compound in Chapter 28. Provides magnetic properties in soft ferrites.
Duty Rate — Japan → United States
14.7%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Include valence state analysis in specs to differentiate from MnO2 and support oxide classification
• For ferrite production, note end-use but ensure pure form to stay in 2820; mixtures go to 3824
• Monitor for Section VI note 1 restrictions if resembling Section XV metal alloys